Mack Trucks Celebrates 40 Years of Manufacturing in the Lehigh Valley

On November 19th, Mack Trucks celebrated the 40th anniversary of the Mack Lehigh Valley Operations manufacturing facility located in Lower Macungie Township, Pennsylvania. The first highway truck assembled at the plant, a Mack F711ST model, rolled off the production line on Nov. 19, 1975. Today, all Mack trucks built for North America and export are assembled at the facility.

“Over the past 40 years, we have proudly assembled thousands of Mack models for customers around the world,” said Stephen Roy, president of Mack Trucks North America. “Each employee’s precision and dedication also has helped solidify Mack’s reputation for building some of the toughest, highest-quality and most durable trucks on the road.”

Site preparation for the one million square-foot facility began in May 1974. Construction began shortly thereafter, and the facility was completed in less than one year. The plant’s layout was designed in-house by Mack employees, without the help of outside consultants, to maximize manufacturing efficiency and flexibility.

With a 700-strong workforce, the first trucks produced at Mack Lehigh Valley Operations included Mack CF model fire apparatus, Mack F model cabover highway trucks and off-highway models like the Mack M series mining trucks and the Mack Pack articulated bottom dump.

Recent investments in the plant have further streamlined the production process, with revised sub-assembly and material handling processes to improve production efficiency. The site has also invested in new equipment to improve post-production testing and inspection processes to ensure the highest quality standards are met.

Today, the facility is also a model for energy efficiency improvements. In 2013, the plant became the first site to earn the U.S. Department of Energy’s Superior Energy Performance (SEP) Platinum certification in the Mature Energy Pathway.

The SEP program certifies industrial facilities that implement an energy management system that meets the ISO 50001 global energy management system standard, in addition to achieving improved energy performance as verified by an independent third party auditor. Mack Lehigh Valley Operations has achieved nearly a 42 percent improvement during a 10-year timeframe and is currently the top SEP certified facility in the nation.

The site has been commemorating its 40th anniversary throughout the year. Employee celebrations took place earlier this summer and unique 40th anniversary banners and branding have been displayed throughout the site.

In conjunction with the anniversary, Mack also announced it would be changing the name of the facility from Macungie Cab & Vehicle Assembly to Mack Lehigh Valley Operations, highlighting the site’s regional impact.

Mack Lehigh Valley Operations - Aerial View
Mack Lehigh Valley Operations – Aerial View
Assembly at Mack Lehigh Valley Operations
Assembly at Mack Lehigh Valley Operations








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